From: John Cameron \(johcamer\) (johcamer@cisco.com)
Date: Sun Jun 13 2004 - 19:32:15 GMT-3
Good point!
JDC
-----Original Message-----
From: Ty [mailto:tycampbell@comcast.net]
Sent: Sunday, June 13, 2004 5:20 PM
To: John Cameron (johcamer); Karim; ccielab@groupstudy.com
Subject: Re: Watch-list question....
You can create a separate dialer watch group for each route, specifying
one route for each dialer watch.
Don't forget the extra dialer map statements that you will need...one
for each dialer-watch group
I am not 100% sure, but I think you can have a total of 7 different
watch groups
----- Original Message -----
From: "John Cameron (johcamer)" <johcamer@cisco.com>
To: "Karim" <karim_ccie@hotmail.com>; <ccielab@groupstudy.com>
Sent: Sunday, June 13, 2004 9:22 AM
Subject: RE: Watch-list question....
> Karim,
>
> For the first scenario - I would use two floating static and
dialer-map
> statements.
>
> For the second scenario, I would use dialer-watch. Dialer-watch will
> not kick in until ALL "watched" routes are lost - so it would not work
> for your first scenario.
>
> From Cisco IOS Dial Technologies Configuration Guide, Release 12.3:
>
> "Monitoring the watched routes is done in the following sequence:
>
> 1. Whenever a watched route is deleted, Dialer Watch checks whether
> there is at least one valid route for any of the defined watched IP
> addresses.
>
> 2. If no valid route exists, the primary line is considered down and
> unusable.
>
> 3. If a valid route exists for at least one of the defined IP
addresses
> and if the route is pointing to an interface other than the backup
> interface configured for Dialer Watch, the primary link is considered
> up.
>
> 4. If the primary link goes down, Dialer Watch is immediately notified
> by the routing protocol and the secondary link is brought up.
>
> 5. Once the secondary link is up, at the expiration of each idle
> timeout, the primary link is rechecked.
>
> 6. If the primary link remains down, the idle timer is indefinitely
> reset.
>
> 7. If the primary link is up, the secondary backup link is
disconnected.
> Additionally, you can set a disable timer to create a delay for the
> secondary link to disconnect, after the primary link is reestablished.
"
>
>
> HTH,
> JDC
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Karim
> Sent: Sunday, June 13, 2004 9:55 AM
> To: ccielab@groupstudy.com
> Subject: Watch-list question....
>
> Hi all,
>
> Would like to know the difference between the following 2 scenarios:
> - When asked to initiate a call when losing reachability to any of 2
> given routes to watch.
>
> I believe that I need to create 2 dialer-maps statement (if using
legacy
> DDR) plus dialer watch-group (in either legacy or dailer interfaces).
> Whenever the reachability lost to any of the two routes, a call will
be
> initiated.
>
> - I asked not to initiate a call only if reachability lost to both
> routes, what will be the solution ????
>
>
> Regards,
> Karim.
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